404427348 has 72 divisors (see below), whose sum is σ = 1165725288. Its totient is φ = 117116928.

The previous prime is 404427329. The next prime is 404427349. The reversal of 404427348 is 843724404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45400644 + 359026704 = 6738^2 + 18948^2 .

It is a super-2 number, since 2×404427348² = 327122959620626208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404427349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17461 + ... + 33372.

It is an arithmetic number, because the mean of its divisors is an integer number (16190629).

Almost surely, 2^404427348 is an apocalyptic number.

It is an amenable number.

404427348 is an abundant number, since it is smaller than the sum of its proper divisors (761297940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404427348 is a wasteful number, since it uses less digits than its factorization.

404427348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50873 (or 50868 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 404427348 is about 20110.3791112947. The cubic root of 404427348 is about 739.5147463894.

The spelling of 404427348 in words is "four hundred four million, four hundred twenty-seven thousand, three hundred forty-eight".